forked from OSchip/llvm-project
99 lines
3.0 KiB
LLVM
99 lines
3.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -constraint-elimination -S %s | FileCheck %s
|
|
|
|
declare void @use(i1)
|
|
|
|
define void @loop_iv_cond_variable_bound(i32 %n) {
|
|
; CHECK-LABEL: @loop_iv_cond_variable_bound(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label [[LOOP:%.*]]
|
|
; CHECK: loop:
|
|
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
|
|
; CHECK-NEXT: [[T_1:%.*]] = icmp ule i32 [[IV]], [[N:%.*]]
|
|
; CHECK-NEXT: call void @use(i1 [[T_1]])
|
|
; CHECK-NEXT: [[T_2:%.*]] = icmp sge i32 [[IV]], 0
|
|
; CHECK-NEXT: call void @use(i1 [[T_2]])
|
|
; CHECK-NEXT: [[T_3:%.*]] = icmp sge i32 [[IV]], -1
|
|
; CHECK-NEXT: call void @use(i1 [[T_3]])
|
|
; CHECK-NEXT: [[C_1:%.*]] = icmp ult i32 [[IV]], [[N]]
|
|
; CHECK-NEXT: call void @use(i1 [[C_1]])
|
|
; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i32 [[IV]], 1
|
|
; CHECK-NEXT: call void @use(i1 [[C_2]])
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[IV]], [[N]]
|
|
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
|
|
; CHECK-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT:%.*]]
|
|
; CHECK: exit:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
br label %loop
|
|
|
|
loop:
|
|
%iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
|
|
%t.1 = icmp ule i32 %iv, %n
|
|
call void @use(i1 %t.1)
|
|
%t.2 = icmp sge i32 %iv, 0
|
|
call void @use(i1 %t.2)
|
|
%t.3 = icmp sge i32 %iv, -1
|
|
call void @use(i1 %t.3)
|
|
|
|
%c.1 = icmp ult i32 %iv, %n
|
|
call void @use(i1 %c.1)
|
|
%c.2 = icmp ugt i32 %iv, 1
|
|
call void @use(i1 %c.2)
|
|
|
|
%cmp = icmp ult i32 %iv, %n
|
|
%iv.next = add nuw nsw i32 %iv, 1
|
|
br i1 %cmp, label %loop, label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
define void @loop_iv_cond_constant_bound() {
|
|
; CHECK-LABEL: @loop_iv_cond_constant_bound(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label [[LOOP:%.*]]
|
|
; CHECK: loop:
|
|
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
|
|
; CHECK-NEXT: [[T_1:%.*]] = icmp ule i32 [[IV]], 2
|
|
; CHECK-NEXT: call void @use(i1 [[T_1]])
|
|
; CHECK-NEXT: [[T_2:%.*]] = icmp sge i32 [[IV]], 0
|
|
; CHECK-NEXT: call void @use(i1 [[T_2]])
|
|
; CHECK-NEXT: [[T_3:%.*]] = icmp sge i32 [[IV]], -1
|
|
; CHECK-NEXT: call void @use(i1 [[T_3]])
|
|
; CHECK-NEXT: [[C_1:%.*]] = icmp ult i32 [[IV]], 2
|
|
; CHECK-NEXT: call void @use(i1 [[C_1]])
|
|
; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i32 [[IV]], 1
|
|
; CHECK-NEXT: call void @use(i1 [[C_2]])
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[IV]], 2
|
|
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
|
|
; CHECK-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT:%.*]]
|
|
; CHECK: exit:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
br label %loop
|
|
|
|
loop:
|
|
%iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
|
|
%t.1 = icmp ule i32 %iv, 2
|
|
call void @use(i1 %t.1)
|
|
%t.2 = icmp sge i32 %iv, 0
|
|
call void @use(i1 %t.2)
|
|
%t.3 = icmp sge i32 %iv, -1
|
|
call void @use(i1 %t.3)
|
|
|
|
%c.1 = icmp ult i32 %iv, 2
|
|
call void @use(i1 %c.1)
|
|
%c.2 = icmp ugt i32 %iv, 1
|
|
call void @use(i1 %c.2)
|
|
|
|
%cmp = icmp ult i32 %iv, 2
|
|
%iv.next = add nuw nsw i32 %iv, 1
|
|
br i1 %cmp, label %loop, label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|